All Stories
- Animals
Scientists Say: Dinosaur
Dinosaurs emerged between 243 and 233 million years ago. While some died out 66 million years ago, others are still with us — birds.
- Climate
Surfing the winds would make future jet travel greener
Simple route changes could drastically cut fuel use and greenhouse-gas emissions, a new study finds.
- Health & Medicine
Too much sitting could hurt your mental health
As inactivity increases, so does risk of depression and other mental health problems, new studies show. But breaks for even light activity can help.
- Health & Medicine
Six tips to build more movement into your day
Most people don’t move enough. The trick is to do what you can whenever you can, even if it’s just standing up more than once an hour and walking a bit.
- Health & Medicine
Bandages made from crab shells speed healing
The chitin in seafood wastes, insect “bones” and fungi is a chemist’s dream. Used in a new medical dressing, it beats regular gauze for wound healing.
- Health & Medicine
Could a toothpaste help treat peanut allergy?
By rolling an immune therapy into a toothbrushing routine, one company hopes to show its product can build and maintain tolerance to peanut allergens.
- Physics
Getting cozy with a science experiment
Items you use in your home can inspire a scientific experiment.
- Health & Medicine
Scientists Say: Placebo
In clinical trials, scientists often test a drug or procedure against a placebo — a treatment that has no effect — to find out how well their new treatment works.
- Climate
The world wastes roughly a sixth of the food produced each year
A new United Nations report shows where wastes can be reduced, which would decrease hunger and emissions of climate-warming greenhouse gases.
- Fossils
An ancient hippo-sized reptile may have been a speedy beast
An Anteosaurus was a hefty reptile with a large snout. Its fossil skull hints that it may have moved fast for its time.
- Animals
Science and Indigenous history team up to help spirit bears
When scientists and Indigenous people work together, their efforts can benefit bears and people.
- Animals
Explainer: Black bear or brown bear?
If you see a bear, check size, shape and more to find out what type it is.
